Pin holder for phonograph records



Feb. 23, 1932. A. M. ACHESON 1,846,378

. PIN HOLDER FOR PHONOGRAPI-i RECORDS Filed m 2 1930 3 Sheets-Sheet 1HINT .INVENTOR A ORNEYS Feb. 23, 1932.

PIN HOLDER FOR PHONOGRAPH RECORDS Filed May 28, 1930 3 Sheets-Sheet 2MAC aran A. M. ACHESON 8 Feb. 23, 1932. A. M. ACHESON 1,846,378

PIN HOLDER FOR PHONGGRAPH RECORDS Filed May 28, 1930 55 Sheets- Sheet aficulties of the illustrative and not Patented Feb. 23,1932

UNITED STATES PATENT OFFICE IDOBBS FERRY, NEW YORK, ASSIGNOR T0 DURIUMPRODUCTS CORPORATION, OF NEW YORK, N. Y., A. CORPORATION OF DELAWARE PINHOLDER FOB PHONOGRAPH RECORDS Application filed lay 28, 1930. Serial No.456,426.

Fig. 1 is an elevational view illustrating a flexible record forced fromthe dotted line plosition into a flat position on the record ta- Fig. 2is a perspective view of a flexible record with a ow or curve formedtherein.

Fig. 3 is a plan view of one form of center pin holding member, showingthe record broken away around the member.

Fig. 4 is a modification of the device shown in Fig. 3.

Fig. 5 is a sectional view taken on line 5-5 of Fig. 3 and illustratingthe device in section.

The present invention relates broadly to phonograph records and moreespecially to a centering device for flexible p onograph records.

Phonograph records made on a flexible paper stock base with the recordsurface coated with record receiving material are light in weight andare relatively flexible. Such records may not lie flat on the phonographrecord table, and also in the use of such records there is a tendency ofthe centering pin on the phonograph record table to wear the opening inthe record to such extent that if the record itself is not flat, it mayrise from the pin and escape from the table. Fig. 6 is a perspectivesectional view taken in the manufacture of the thin flexible aon line6-6 of Fig. 5. per body phonograph records, the manu acig. is asectional view taken on line turer purposely makes the records with a7-7' of Fig. 5.

how or curl therein so that the concave side Fig. 8 is a plan view ofanother modificaot the record is opposite to the record surtion 0f theinvention.

face. When such a bowed record is set on a record table, with the turntable pin clamped by friction in the center opening of the record, therecord then lies flat on the turn tahie. This may be accomplished bymaking the opening in the record of such size as to trictionally engagethe pin. Where this opening is made in the paper record itself, theopening tends to wear as the record applied to and removed from therecord table, so that this opening may increase to such size that thereis not suiiicient friction on the pin to hold the record in place.

The present invention overcome the dif- 1g. 9 is a sectional view takenon line 9 9 of Fig. 8.

Fig. 10 is a sectional 'view taken on line 1010 of Fig. 8.

Fig. 11 is a sectional view disclosing a slight modification of the formof invention shown in Fig. 10.

Referring now to the drawings and more especially to Figs. 1 and 2, theturn table 1 of a phonograph is provided with a centerpasses through acentral mg pin 2 which opening 4 in a pin holder 5, engages the sides ofthe pin so that the flexible record 6 is held flat on the table 1. ThisP art y P g a q flexible record 6 is preferably manufactured permanentcenter member adapted .to frlcith a b or curve t th record as i di-$101131}? engage l -19 the PF table cated in dotted lines in Fig. 1 andas illusl l to 156 of Sufiiclent 51756 reslhency trated in Fig. 2, sothat when the pin holder withstand repeated applicationsof the rec- 5 ih d d Over th centermg i 2, W01 to the P Wlthout substantlal weal 0n theflexibility of the record tends to hold the h 68111581 edges of therecord down on the turn table 1. Other and further ob3ects of the pres nI I- The centering pin holder 5 may take varivention will in part beobvious from the dis 0113 forms, but preferably comprises a subclosureherein and will in part be pointed out stantially flat member providedwith fricin the specification hereinafter following. tion means adaptedto engage the centering It is recognized that the present invention pin2 and one form of the device as illustrated may be embodied instructures other than in Figs. 3, 5, 6' and may comprise a subthosespecifically disclosed herewith so that stantially flat member formedfrom sheet the disclosure herein is to be understood as metal andslotted to provide flexibility and in the limiting sense. resilience tothe friction tongues. The device may be provided with slots 7 and withan open cut 8. Preferably alternate sectors between the slots areanchoring members 9 having a portion of their ends extending through theopening 4 in the record and being clinched on the back of the record.The intermediate sectors comprise friction spring tongues 10 preferablyhaving ends 11 which are not clinched to the record. These ends 11preferably are slightly rounded and extend into the opening 4 a slightlyfurther distance than the ends of the anchoring members 9, so that whenthe record is pushed down over-the centering pin 1, the ends 11 on thepin holder 5 frictionally engage with the sides of the pin and hold therecord in place. Anchoring lugs 12 may be provided on the periphery ofthe member 5 to more securely hold the member in place. The open slot- 8is provided to permit additional flexibility to the action of the memberand there is suflicient movement between the lugs 12 and the openingsthrough whi h they pass in the record to' permit the cut 8 to slightlyexpand when the pin holder is forced down over the pin 2.

Fig. 4 is a construction somewhat similar to that illustrated in Fig. 3with the exception that the open out is omitted and in place thereofslots 14 are provided entirely around the opening 4. further exception,

There is a namely, that the ends of the anchoring members 15 and alsothe ends of the spring tongues 16 are substantially straight instead ofbeing curved as illustrated in Fig. 3. This straight end facilitates themanufacture of the device and simplifies the operation slightly.

Figs. 8, 9 and 10 illustrate another form of the invention wherein thepin holder 5 is provided with a plurality of curved slots 17 to formcurved spring fingers 18 adapted to yield in the direction of the arrowsA of Fig. 9. These spring fingers may terminate as illustrated in Fig.10 or they may be continued into rounded ends 19 as illustrated in Fig.11.

The ends of these spring fingers 18 extendslightly further into thecentral opening 4 than do the anchoring members 20 which areintermediate the spring fingers.

The invention as above outlined in various forms comprises a flat memberpreferably of resilient or spring metal constructed in such manner as toprovide flexible engaging fingers adapted to contact with the centeringpin of a record table in order to frictionally hold the flexible recordin place. The flatness of the pin holding member is important in that itpermits the records to be stacked without undue interference with eachother.

Having described my invention, claim is:

1. In combination, a flexible phonograph record having a pin opening inthe center thereof, a fiat metal member adapted to surround said pinopening, said member being what I provided with slots dividing saidmember into sectors, the inner ends of certain of said sectors extendingthrough said opening and being clinched on the back thereof to compriseanchors for said member, others of said sectors extending into saidopening and comprising flexible spring fingers adapted to engage arecord table pin to hold said record in position on said table. 7

2. An article of manufacture comprising a pin holding device forflexible phonograph records having a pin opening in the center thereof,said device comprising a flat resilient member, means to anchor saidmemher to a flexible phonograph record, said member having resilienttongues lying on the face of said record with the ends of said tonguesextending into the said pin opening, and

adapted to engage the sides of a record table pin to prevent said recordfrom coming off of said table when said record is in use.

3. In combination, a flexible phonograph record having a pin opening inthe center thereof, said record being bowed and normally tending to comeoff the record table pin of a phonograph when said record is in use, aflat member anchored to the center portion of said record andsurrounding said pin opening, friction means from said flat memberextending into said opening and bein adapted to engage the record'tablepin to hold said flexible record from coming off said record table whenin use.

4. In combination, a flexible phonograph .record being bowed in order toestablish downward pressure at certain portions of the edge of saidrecord when said record is in position for use on a phonograph recordtable, said record being provided with a pin opening in the centerthereof, and means to hold said record flat on said record table when inuse, said means comprising resilient members anchored to the centralportion of said record and adapted to engage a record table pin toresist the forces in said record tendin to bow up the center of therecord when said record is flattened for use on a record ,table.

, ARTHUR M. ACHESON.

